The nature of our sampling design was such that there should be no environmental differences between each sample taken from the same habitat type. As such, we have combined the grass and woodland results to allow us to compare more effectively the results from each.
Black
Green
Orange
Red
Yellow
Grass
16
5
11
13
15
Wood
18
7
13
6
16
Expected
17
6
12
9.5
15.5
X2
0.058824
0.166667
0.083333
1.289474
0.016129
Degrees of freedom = (4x1) = 4
Calculated chi squared values are all below the P value for 4 degrees of freedom at the 0.05 level of significance (9.49).
The chi squared value for the red jelly babies shows greater significance than the other colours, indicating that these particular results would be obtained again less than 90% of the time, compared to more than 95% of the time with the other colours. However, the chi squared values obtained for all morphs are not significant, and we are therefore unable to reject our null hypothesis - there is an absence of selection; observable polymorphism is due to genetic drift and gene flow.
Calculated chi squared values are all below the P value for 4 degrees of freedom at the 0.05 level of significance (9.49).
The chi squared value for the red jelly babies shows greater significance than the other colours, indicating that these particular results would be obtained again less than 90% of the time, compared to more than 95% of the time with the other colours. However, the chi squared values obtained for all morphs are not significant, and we are therefore unable to reject our null hypothesis - there is an absence of selection; observable polymorphism is due to genetic drift and gene flow.